Q: What are the prime factors of the number 122,303,220?

 A: 2, 3, 5, 13, 156799

Why are those the prime factors of the number 122,303,220?

Prime factors are the prime numbers that can be multipled together to equal the original number. You find the factors by dividing by prime numbers. It is best shown by creating a Factor Tree.

Factor Tree for the number 122,303,220

122,303,220
Factor Arrows
261,151,610
Factor Arrows
230,575,805
Factor Arrows
310,191,935
Factor Arrows
52,038,387
Factor Arrows
13156,799

The numbers in bold above are the prime factors. If there are multiples, you only count them one time. This leads us to our prime factors of:

2, 3, 5, 13, 156799

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 5 x 13 x 156,799 = 122,303,220

This can also be written as 22 x 31 x 51 x 131 x 156,7991 = 122,303,220

If you would like to know more, or need additional explanation, please review our prime factorization explanation.


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